Chapter 0 Outline. NCCU Wireless Comm. Lab

Transcription

1 Chapter 0 Outline

2 Chapter 1 1 Introduction to Orthogonal Frequency Division Multiplexing (OFDM) Technique 1.1 The History of OFDM 1.2 OFDM and Multicarrier Transmission 1.3 The Applications of OFDM 2

3 Chapter 2 2 The Basic Principles of OFDM 2.1 Serial and Parallel Concepts 2.2 IFFT and FFT 2.3 Modulation M-ary Phase Shift Keying M-ary Quadrature Amplitude Modulation 2.4 Guard Interval and Cyclic Extension 2.5 Orthogonality 2.6 Advantages and Disadvantages 3

4 Chapter 3 3 OFDM Transmission over Gaussian Channels 3.1 The Channel Model 3.2 OFDM System Performance over AWGN Model 3.3 OFDM System Performance with Clipping Amplification 4

5 Chapter 4 4 OFDM Transmission over Wideband Channels 4.1The Channel Model 4.2 Effects of Time Dispersive Channels on OFDM 4.3 Channel Estimation Time Domain Channel Estimation Frequency Domain Channel Estimation 4.4 Equalization Time Domain Equalization Frequency Domain Equalization 4.5 System Performance 5

6 Chapter 5 5 Time and Frequency Domain Synchronization 5.1 Effects of a Symbol (or Frame) Offset Timing Error Carrier Phase Noise 5.2 Effects of Carrier and Sampling Clock Frequency Offsets Carrier Frequency Offset Sampling Frequency Offset 5.3 Synchronization Algorithms Symbol Synchronization Frequency Synchronization 5.4 OFDM Synchronization Performance 6

7 Chapter 6 6 The Peak-to-Average Power Ratio Problem 6.1 The Peak-to-Average Power Ratio OFDM Signal Amplitude Statistics Distribution of The Peak-to-Average Power Ratio 6.2 Clipping and Peak Window Clipping Amplifier Methods Clipping Amplifier Simulations BER Performance using Clipping Amplifiers 6.3 Peak Cancellation 6.4 PAP Reduction Codes 6.5 Symbol Scrambling 7

8 Chapter 7 7 Adaptive OFDM 7.1 Adaptive Techniques 7.2 Adaptive Modulation of OFDM 7.3 Adaptive Single- and Multi-user OFDM 8

9 Chapter 8 8 OFDM Applications 8.1 DAB Introduction to DAB DAB System Overview DAB Channel Coding DAB Modulation Channel for DAB OFDM System Receiver for DAB OFDM System 8.2 HDTV -Digital Video Broadcasting (DVB) Introduction to DVB DVB System Overview Channel Coding and Modulation 8.3 Wireless LAN Networks Introduction to Wireless LAN Networks Indoor Environment Statistic Channel Model for WLAN a WLAN Standard 8.4 IEEE Broadband Wireless Access System Introduction to IEEE Introduction to Physical Layer of

10 Chapter 9 9 Multi-carrier CDMA 9.1 Introduction 9.2 Family of Multi-carrier CDMA Systems MC-CDMA System Multi-carrier DS-CDMA System Multi-Tone CDMA System 9.3 Differences between OFDM and MC-CDMA 10

11 Appendix A Appendix A Fourier Transform A.1 DFT and its inverse A.1.1 Properties of the DFT A.2 FFT and its inverse A.2.1 The decimation-in-time fast Fourier transform algorithm A.2.2 The decimation-in-frequency fast Fourier transform algorithm A.2.3 Inverse fast Fourier transform A.2.4 The implementation of FFT 11

12 Appendix B Appendix B Digital Modulation B.1 Phase Shift Keying B.1.1 Binary Phase Shift Keying B.1.2 Quadriphase shift Keying B.1.3 M-ary Phase Shift Keying B.1.4 Differential Phase Shift Keying B.2 Quadrature Amplitude Modulation 12

13 References References 13

14 Lab Lab 1 The Studying of MATLAB, FPGA and DSP Lab 2 The Implementation of BPSK/QPSK/QAM Mapping/Demapping Function using FPGA or DSP Lab 3 The Implementation of FFT/IFFT Algorithm using FPGA or DSP Lab 4 The Simulation of OFDM System over AWGN Channel and Wideband Channel using MATLAB or C Language Lab 5 The Implementation of Baseband transmitter with QAM Modulation in OFDM System using DSP or FPGA Lab 6 The Simulation of Coarse Synchronization - using MATLAB or C Language 14

15 Lab Lab 7 The Simulation of Fine Synchronization using MATLAB or C Language Lab 8 The Simulation of Different Methods to Reduce PAPR using MATLAB or C Language Lab 9 The Implementation of Synchronization using FPGA Lab 10 The Implementation of Clipping and Peak Window using FPGA or DSP Lab 11 The Implementation of Equalization using DSP or FPGA Lab 12 The MC-CDMA System Simulation using MATLAB or C Language 15

16 Lab 1 The Studying of MATLAB, FPGA and DSP MATLAB, FPGA DSP Matlab MATLAB MATLAB 16

17 Lab 1 The Studying of MATLAB, FPGA and DSP FPGA Xilinx Foundation 4.1i Xilinx FPGA Architecture Introduction to FPGA The architecture of Virtex-E The architecture of Virtex-II Xilinx Foundation 4.1i -Introduction Xilinx Foundation 4.1i -Project Manager Window Creating a new project HDL Editor Synthesis setting Simulation Implementation Tabbed Information Using CORE_Generator Some Useful Command 17

18 Lab 2 The Implementation of BPSK/QPSK/QAM Mapping/Demapping Function using FPGA or DSP FPGA or DSP OFDM Mapping Demapping Function BPSK QPSK 16-QAM φ 2 m Es 1 φ 1 m 2 E s E s m 0 φ 1 m 1 m 0 E s m 3 18

19 Lab 3 The Implementation of FFT/IFFT Algorithm using FPGA or DSP FPGA DSP OFDM IFFT Algorithm FFT butterflies for an 8-point DFT 19

20 Lab 4 The Simulation of OFDM System over AWGN Channel and Wideband Channel using MATLAB or C Language OFDM ( AWGN Channel and Wideband Channel ) OFDM d n sn st () sˆn d ˆn Serial Data Output 20

21 Lab 5 The Implementation of Baseband transmitter with QAM Modulation in OFDM System using DSP or FPGA FPGA DSP OFDM baseband function AWGN Channel Wideband Channel d n sn st () sˆn d ˆn Serial Data Output 21

22 Lab 6 The Simulation of Coarse Synchronization - using MATLAB or C Language Coarse d n sn st () Serial Data Output 22

23 Lab 7 The Simulation of Fine Synchronization using MATLAB or C Language Fine d n sn st () Serial Data Output 23

24 Lab 8 The Simulation of Different Methods to Reduce PAPR using MATLAB or C Language PAPR d n sn s () t Serial sˆn d ˆn Data Output 24

25 Lab 8 The Simulation of Different Methods to Reduce PAPR using MATLAB or C Language Peak Cancellation 25

26 Lab 8 The Simulation of Different Methods to Reduce PAPR using MATLAB or C Language PAP Reduction Codes- block code 26

27 Lab 8 The Simulation of Different Methods to Reduce PAPR using MATLAB or C Language Symbol Scrambling SLM 27

28 Lab 8 The Simulation of Different Methods to Reduce PAPR using MATLAB or C Language PTS 28

29 Lab 9 The Implementation of Synchronization using FPGA FPGA pilot tone training symbol d n sn st () Serial Data Output 29

30 Lab 10 The Implementation of Clipping and Peak Window using FPGA or DSP FPGA DSP PAPR Clipping peak window d n sn s () t Serial sˆn d ˆn Data Output 30

31 Lab 11 The Implementation of Equalization using DSP or FPGA FPGA DSP Frequency Domain Equalization d n sn st () Serial Data Output 31

32 Lab 12 The MC-CDMA System Simulation using MATLAB or C Language Multi-carrier CDMA 32